Fire-box of industrial and household heating apparatus.



I F. E. GOLIGNON. FIRE BOX OF INDUSTRIAL AND HOUSEHOLD HEATING APPARATUS. ArPLIoATmN FILED SBPT.18,1911.

.1 Q86 996 Patented Feb. 10,'1914.

Fig.1.

FERDINAND EUGENE GOLIGNON, OF PARIS, FRANCE.

FIRE-BOX OF INDUSTRIAL AND HOUSEHOLD HEATING APPARATUS.

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Specificationof Letters Patent.

Patented Feb. 10, 1914.

Application filed September 18, 1911. Serial No. 650,045.

To all whom it may concern Be it known that I, FERDINAND E. Co- LIGNON, a citizen of France, residing at 96 Faubourg Poissoniere, Paris, in the Republic of France, have invented a new and useful Improvement in Fire-Boxes of Industrial and Household Heating Apparatus, of which the following is a specification. Y

My present invention relates to heating apparatus and more particularly to the fire box and disposition of draft inlet and egress flues communicating therewith, and means for controlling the drafts.

A principal object of my invention is to provide means whereby a slow and continuous fire may be maintained in the fire box, by deflecting the air desirable for attaining rapid combustion, to be conveyed by the main egress flue of the apparatus in close proximity to the fire box, but not therethrough, where it is heated and its rise in the flue thus facilitated.

A further object of my invention is to so dispose the fire box, ash pit and egress way for gases from the fire box, that ash and particles of high specific gravity carried through said way may be deposited into said ash pit which extends under the grate of the fire box.

Other objects of my invention will appear in the specification, in connection with the accompanying drawing, forming a part thereof, and in which drawings:

Figure 1 is a vertical, central, sectional view through a range embodying my invention. Fig. 2 is a cross sectional View on the lines H-I-I of Fig. 1.

Similar characters refer to similar parts throughout the views.

Referring, more particularly to the drawing, a designates the fire box of the range which is provided with upright walls a and a, and grate bars I). The wall a divides the fire box a from a chamber 0, having a floor 9, provided with an aperture f, which communicates with an ash pit j extending under the fire box a.

The egress flue e of the apparatus communicates with the chamber 0 and fire box a and a way 0 is provided in wall a in close proximity to and above the grate bars 6 whereby gases from fire box a may be conveyed to fiue 6 through chamber 0.

Below the fire box a is a draft inlet 0, which need not be provided with a shutter, this inlet permitting an inflow of air to facilitate combustion of the material to be deposited in the fire box a.

The aperture 7' in floor g is controlled by a plate h, which may be mounted to oscillate, to close, or more or less obstruct the passage for air through the said aperture, or permit free passage of air therethrough. As shown in the drawing, this plate It is oscillatable, it being mounted on a spindle is extending through one wall of the range where it is provided with a handle 2' to facilitate oscillation.

A deflecting plate d is provided in chamber O which deflects air passing through such chamber through aperture f, to travel in close proximity through the Wall a, of the fire box, where the air is heated prior to its ascent in flue 6. It is to be noted that by closing the aperture f the air finds ingress at opening 0 follows a path indicated by heavy arrows F, while upon opening said apertures the air travels in a path indicated by broken line arrows G.

It is to be noted that the chamber 0 constitutes a heating chamber for the cold air when the damper is opened, this air entering constantly through the opening in the front wall. It is also 'to be noted that this heating effect is greatly enhanced by the escape of the hot gases from above the grate bars through the opening 0.

The operation of the apparatus is as follows :-With the aperture, in the floor of the chamber divided from the fire box, closed, the air finds ingress below the grate follows a path of movement between the grate bars and rapid combustion of the material in the fire box takes place. Upon opening the said aperture, by movement of its controlling plate,

a part or all of the air finding ingress below the grate is conducted through the said chamber in close proximity to the fire box, and up through the main flue. Inasmuch as the air thus traveling is heated, its rise in the flue is facilitated, owing to the difference in density thereof as compared with the exterior atmosphere, and a slow and continuous fire will result in the fire box, without a damper in the main fiue.

With the aperture in the floor of the chamber 0 open, any particles of high specific gravity conveyed thereto will be deposited in the ash pit common to both said chamber and the fire box.

I claim A furnace casing including a front Wall having a constantly open aperture therein, a bridge Wall extending across said casing and having an opening in the bottom and a second opening between the bottom and top, grate bars extending between said front Wall and bridge wall, said grate bars being positioned above the opening in the front Wall and below the upper opening in the bridge Wall whereby said second opening forms an exit from the fire box, said bridge wall being provided with a smoke vent at its upper part above the second mentioned opening, a

rear Wall in spaced relation to the bridge Wall and provided with a flue, opening an apertured partition extending between the bridge and rear Walls to form an air heating chamber between said Walls and above said partition, a battle plate in said chamber arranged to deflect the air passing through the aperture in the partition and cause it to pass close to the second mentioned opening in the bridge Wall.

In witness whereof I have hereunto set my hand in presence of two witnesses.

FERDINAND EUGENE OOLIGNON.

Witnesses VICTOR Pnnvosr, H. 0. Corn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patente, Washington, D. G. 

